hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

log_manager.cc

Browse Source 
Added new argument '-s' which takes additional argument composed of list of logfile identifiers. Logfiles listed with '-s' will be written on main memory instead of disk. In practice, the log file in question will be written in /dev/shm but corresponding symlink is added to log directory. In the case of name conflicts with log files and links, a differentiating sequence number is included in hte name of the file. This, however, is done only when existing file is not writable or is of different type (symlink <> file). 
	Added new logfile LOGFILE_DEBUG whose contents will be largerly what was included up to date in trace log. 

	Disabled feature which spreads writes to log files to others because of bug (#338) in the way block buffers are managed.

	Changed log manager parameters to match with the current implementation. List of arguments:
                "-h - help\n"
                "-a <debug prefix>   ............(\"skygw_debug\")\n"
                "-b <debug suffix>   ............(\".log\")\n"
                "-c <trace prefix>   ............(\"skygw_trace\")\n"
                "-d <trace suffix>   ............(\".log\")\n"
                "-e <message prefix> ............(\"skygw_msg\")\n"
                "-f <message suffix> ............(\".log\")\n"
                "-g <error prefix>   ............(\"skygw_err\")\n"
                "-i <error suffix>   ............(\".log\")\n"
                "-j <log path>       ............(\"/tmp\")\n"
                "-s <shmem log file ids> ........(no default)\n";

dcb.c
	dcb_add_to_zombieslist, add dcb to the front of zombies list instead of inserting to the end of it.

gateway.c
	Renamed shutdown_gateway to shutdown_server (Bug #131)
	Call skygw_logmanager_init so that trace and debug logs are written to shared memory.

poll.c 
dcb.h
	Removed some dead code and references to unneeded mutexes.

debugcmd.c
	Added enable/disable log command for debug log.

skygw_utils.cc
	skygw_file_init now takes optional symlink name as a second argument. Symlink is created to point to the file being created.
This commit is contained in:
vraatikka
2013-11-08 12:56:39 +02:00
parent 594f1c294f
commit 9ba7a0d955
15 changed files with 973 additions and 442 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
utils/skygw_utils.cc
View File

@ -279,8 +279,9 @@ mlist_node_t* mlist_detach_nodes(
* @return Address of mlist_t struct.
*
*
* @details Cursor must protect its reads with read lock, and after acquiring
* read lock reader must check whether the list is deleted (mlist_deleted).
* @details Cursor must protect its reads with read lock, and after
* acquiring read lock reader must check whether the list is deleted
* (mlist_deleted).
*
*/
mlist_t* mlist_init(
@ -1240,8 +1241,10 @@ simple_mutex_t* simple_mutex_init(
sm = (simple_mutex_t *)calloc(1, sizeof(simple_mutex_t));
}
ss_dassert(sm != NULL);
#if defined(SS_DEBUG)
sm->sm_chk_top = CHK_NUM_SIMPLE_MUTEX;
sm->sm_chk_tail = CHK_NUM_SIMPLE_MUTEX;
#endif
sm->sm_name = name;
/** Create pthread mutex */
@ -1746,8 +1749,8 @@ return_succp:
}
skygw_file_t* skygw_file_init(
char* fname)
char* fname,
char* symlinkname)
{
skygw_file_t* file;
@ -1780,16 +1783,46 @@ skygw_file_t* skygw_file_init(
setvbuf(file->sf_file, NULL, _IONBF, 0);
if (!file_write_header(file)) {
int eno = errno;
errno = 0;
fprintf(stderr,
"* Writing header of log file %s failed.\n",
file->sf_fname);
perror("SkyGW file open\n");
"* Writing header of log file %s failed due %d, %s.\n",
file->sf_fname,
eno,
strerror(eno));
free(file);
file = NULL;
goto return_file;
}
CHK_FILE(file);
ss_dfprintf(stderr, "Opened %s\n", file->sf_fname);
ss_dfprintf(stderr, "Opened %s\n", file->sf_fname);
/**
* Create symlink to newly created file if name was provided.
*/
if (symlinkname != NULL)
{
int rc;
unlink(symlinkname);
rc = symlink(fname, symlinkname);
if (rc != 0)
{
int eno = errno;
errno = 0;
fprintf(stderr,
"failed to create symlink %s -> "
"%s due %d, %s. Exiting.",
fname,
symlinkname,
eno,
strerror(eno));
free(file);
file = NULL;
goto return_file;
}
}
return_file:
return file;